ELC DeviceNet (ELC-CODNET) Instruction Manual
May 2005
Pub. No.
MN0500300
5E
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13
Chapter 4
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Troubleshooting
NS LED
Table 5-1: Troubleshooting the Network Status LED
NS LED Status
Indication
Corrective Actions
LED is off
No power/Duplicate ID check
not completed.
1. Verify ELC-CODNET module is
powered on.
2. Make sure one or more nodes
are communicating on the
network.
3. Make sure at least one other
node on the network is
operational at the same time
and baud rate as the
ELC-CODNET module.
Flashing Green Online/not connected.
No action needed.
Steady Green
Online/connected. One or
more connections established.
No action needed.
Flashing Red
Online/time-out. IO connection
timed out.
Steady Red
Network failure. Failed
duplicate ID check or Bus-Off.
1. Make sure all nodes have
unique address.
2. Check network for correct media
installation and baud rate.
MS LED
Table 5-2: Troubleshooting the Module Status LED
MS LED Status
Indication
Corrective Actions
LED is off
No power/not online.
Verify ELC-CODNET module is
powered on.
Flashing Green
Waiting for IO data. No IO or ELC
in program.
ELC-CODNET module has
passed all operational tests and
is waiting to exchange IO data.
Steady Green
IO operational.
No action needed.
Flashing Red
Configuration problem.
Reset ELC-CODNET module.
Steady Red
Hardware failure.
Return to the factory.
